Results 51 to 60 of about 5,120 (227)

Estimating beluga whale abundance from space: using drones to ground‐validate VHR satellite imagery

Remote Sensing in Ecology and Conservation
Routine monitoring of cetaceans is imperative for understanding their population trends and making informed management decisions. However, the inherent nature of cetaceans and the marine ecosystems they inhabit make annual population surveys logistically
Jordan B. Stewart, Justine M. Hudson, Bryanna A. H. Sherbo, Cortney A. Watt   +3 more
doaj   +1 more source

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

Integrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic, Cleopatra Mara Loza, Alejo Carlos Scarano, Pedro Fernando Andrés‐Laube, Francisco Acuña, Juan Pablo Loureiro, Carolina Natalia Zanuzzi, Nicolás Nahuel Castro, María Teresa Pombo, Lorenzo von Fersen, Claudio Gustavo Barbeito   +10 more
wiley   +1 more source

Bester (beluga ♀ × starlet ♂) production and comparing their growth with beluga in Iran [PDF]

, 2009
Aquaculture for human consuming species is being considered as the first substitution of catching aquatic species due to increase of human population and decrease of wild aquatic stocks.
Abdolhay, H., Farabi, M.V., Hosseini, M.R., Hallajian, A., Darvishi, S., Bahmani, M., Chakmehduz, F., Baradaran Noveiri, Shahrouz   +7 more
core   +1 more source

Identifying beluga distribution in the Tarium Niryutait Marine protected area using passive acoustic monitoring

Arctic Science
Arctic estuaries are important summer habitats for beluga whales (Delphinapterus leucus (Pallas, 1776)) and many populations form seasonal aggregations at these locations.
K.C. Scharffenberg, S.A. MacPhee, X. Mouy, D. Whalen, A.J. Wright, L.L. Loseto   +5 more
doaj   +1 more source

(Table 2) Expected and observed beluga (Delphinapterus leucas) sightings according to habitat characteristics

, 2011
(Table 2) Expected and observed beluga (Delphinapterus leucas) sightings according to habitat ...
Stirling, Ian, Richard, Pierre R, Barber, David G, Asselin, Natalie C, Steven H Ferguson (7995512), Ian Stirling (315316), Pierre R Richard (7995515), Ferguson, Steven H, Natalie C Asselin (7995506), David G Barber (7995509)   +9 more
core   +1 more source

Construction and validation of safe Clostridium botulinum Group II surrogate strain producing inactive botulinum neurotoxin type E toxoid

Scientific Reports, 2022
Botulinum neurotoxins (BoNTs), produced by the spore-forming bacterium Clostridium botulinum, cause botulism, a rare but fatal illness affecting humans and animals.
Maria B. Nowakowska, Katja Selby, Adina Przykopanski, Maren Krüger, Nadja Krez, Brigitte G. Dorner, Martin B. Dorner, Rongsheng Jin, Nigel P. Minton, Andreas Rummel, Miia Lindström   +10 more
doaj   +1 more source

Pathogen Exposure in White Whales (Delphinapterus leucas) in Svalbard, Norway

Pathogens, 2022
The Svalbard white whale (Delphinapterus leucas) population is one of the smallest in the world, making it particularly vulnerable to challenges such as climate change and pathogens.
Ingebjørg H. Nymo, Ursula Siebert, Christine Baechlein, Alexander Postel, Eva M. Breines, Christian Lydersen, Kit M. Kovacs, Morten Tryland   +7 more
doaj   +1 more source

Take my breath away: Defining the oxygen saturation threshold for fish cortisol stress response

Journal of Fish Biology, EarlyView.
Abstract Human activities are affecting the number, size and severity of hypoxic zones in aquatic ecosystems. As oxygen is one of the most important abiotic factors affecting fish biology, exposure to low levels of dissolved oxygen may lead to a reduction in fitness.
Sébastien Alfonso, Benjamin Geffroy, Pierluigi Carbonara, Lola Toomey, Eduardo Bessa   +4 more
wiley   +1 more source

Keras version of DeepSEA beluga model

, 2019
Keras port of the DeepSEA beluga model. As per the DeepSEA beluga license, this is for academic use only.
Avanti, Avanti (8288316)
core   +1 more source

Measuring Hearing in Wild Beluga Whales [PDF]

, 2016
We measured the hearing abilities of seven wild beluga whales (Delphinapterus leucas) during a collection-and-release experiment in Bristol Bay, AK. Here we summarize the methods and initial data from one animal and discuss the implications of this experiment. Audiograms were collected from 4 to 150 kHz.
Mooney, T. Aran, Castellote, Manuel, Quakenbush, Lori T., Hobbs, Roderick, Goertz, Caroline, Gaglione, Eric   +5 more
openaire   +3 more sources